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Ahsanullah University of Science & Technology

Department of Industrial & Production Engineering

Quick Fruiter

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Submitted By

Antor Habib Chowdhury (11.01.07.102)

Mostafa Mashnoon Kamal (11.01.07.106)

Somaiya Islam Khan (11.01.07.110)

Sakib Shahriar (11.01.07.122)

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Quick Fruiter

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What is Our Product

Slicer Juicer

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Quick Fruiter

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Product Features

          • Less effort
          • Less time
          • It is portable
          • Small in weight and size
          • Easy to clean

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      • Customer Survey
      • QFD
      • Flow Diagram
      • Material Selection
      • Design Analysis
      • Manufacturing Process Selection
      • Cost Analysis

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Contents

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Customer Survey

  • Surveyed on 40 people.
  • Surveyed in various cities-

Dhaka

Comilla

Narayanganj� Mymensingh.� People of Dhaka city responds a lot.

  • Survey was done between the age limit of 15-65.�people of 25-30 were mostly interested.
  • Targeted customer- Women� Bachelors� students

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Customer Survey (Cont.)

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QFD (Cont.)

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Flow Diagram

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Material Selection

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Name of Parts

Alternative Materials

Selected Materials

Base

SS (7.35), MS (5.45), CI (4.55), Al (6.95), Wood (7.35)

Wood (7.35)

Drawer

SS (7.25), MS (5.35), CI (4.50), Al (7.15), Perspex (8.50)

Perspex (8.50)

Plunger

SS (7.45), MS (5.40), CI (4.35), Al (7.10), Teflon (7.60)

Teflon (7.60)

Wheel

SS (7.09), MS (5.35), CI (4.49), Al (7.05), Teflon (7.51)

Teflon (7.51)

Pressure Plate

SS (7.05), MS (4.37), CI (4.44), Al (6.77), Teflon (7.13)

Teflon (7.13)

Frame

SS (7.07), MS (5.46), CI (4.02), Al (5.95), Wood (5.89)

SS (7.07)

Cutter

SS (7.42), MS (5.47), CI (4.56), Al (7.03)

SS (7.42)

Guide Rod

SS (7.39), MS (4.55), CI (4.61), Al (6.95), Wood (7.33)

SS (7.39)

Cylinder Support

SS (7.45), MS (5.69), CI (4.50), Al (7.15), Wood (5.57)

SS (7.45)

Cylinder

SS (7.52), MS (5.57), CI (4.21), Al (7.23)

SS (7.52)

Nozzle

SS (7.31), MS (5.90), CI (4.20), Al (7.20)

SS (7.31)

Filter

SS (7.40), MS (5.45), CI (4.50), Al (7.05)

SS (7.40)

Supporting Rod

SS (7.45), MS (5.50), CI (4.60), Al (6.90), Wood (7.20)

SS (7.45)

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Material Selection (Cont.)

304 Stainless Steel (Austenitic)

316 Stainless Steel (Austenitic)

Food Grade Stainless Steel

420 Stainless Steel (Martensitic)

430 Stainless Steel (Ferritic)

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420 Stainless Steel (Martensitic)

Recommended

316 Stainless Steel (Austenitic)

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Design Analysis

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Design And manufacturing process (Cont.)

Slicer

Frame: Guide Rod:

holds slicer set up. Guides pressure plate.

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SS Sheet SS Rod

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Shearing Power Saw Cutting

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Manual Bending TIG Welding

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TIG Welding Buffing

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Buffing

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Design And Manufacturing Process (Cont.)

Pressure Plate:

Pressurizes fruit.

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Teflon Board

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Shaper Machining

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Drilling

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Cutter:

Slices Fruit into Different Shape.

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SS Sheet

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Shear Cutting

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Grinding

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Wire Cutting

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TIG Welding

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Buffing

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Design And Manufacturing Process (Cont.)

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Design And Manufacturing Process (Cont.)

Juicer

Cylinder: Cap:

Main body of juicer. Assists shaft movement.

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Cylinder Cylinder

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Turning By Lathe Turning By Lathe

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TIG Welding TIG Welding

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Buffing Buffing

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Wheel: Shaft:

Apply torque to Shaft. Magnifies force.

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Teflon board SS Rod

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Turning By Lathe Turning By Lathe

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Drilling Drilling

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Hack Saw Cutting TIG Welding

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Buffing

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Design And Manufacturing Process (Cont.)

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Stress and Cost Analysis (Cont.)

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Stress Analysis

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Thickness of Pressure Plate:

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Yield strength of Teflon = 45 MPa

Maximum pressure to cut = 12 kg

Width of pressure plate = 140 mm

Thickness of pressure plate = t

We know,

Stress = force/Area

or, t = 18.6 mm

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So, required thickness of the pressure plate is 18.6 mm.

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Stress and Cost Analysis (Cont.)

Diameter of Shaft:

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Radius of wheel, r = 0.07 m

Force, F = 10 kg × 9.8 = 98 N

Yield strength of SS, Ʈ = 137.896 MPa

Diameter of shaft = d

Torque, T = 98 × 0.07 Nm

= 6.86 Nm

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Stress, Ʈ = 16T/πd3

or, d = 3√(16T/πƮ)

= 6.328 mm

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So, required diameter of shaft is 6.328 mm.

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Cost Analysis

Make or Buy Decision

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Parts Name

Making Cost (BDT)

Buying Cost (BDT)

Make or Buy

Least Cost (BDT)

Pressure Plate

140

180

Make

140

Guide Rod

57

50

Buy

50

Drawer

90

120

Make

90

Frame

108

150

Make

108

Cutter

112

240

Make

112

Cylinder Support

72

80

Make

80

Supporting Rod

120

180

Make

120

Plunger

106

120

Make

106

Wheel

123

130

Make

123

Filter

25

20

Buy

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Nozzle

62

50

Buy

50

Base

77

40

Buy

40

Cylinder

226

300

Make

226

Total

 

 

 

1,165

Stress and Cost Analysis (Cont.)

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Cost and Revenue:

Fixed cost = Machine cost + Overhead cost + Direct labor cost

= BDT (14,470 + 1,64,000 + 78,000)

= BDT 2,56,470.00

 

Variable Cost/Unit = Direct Material Cost/Unit + Outsourcing Cost/Unit + Transportation Cost/Unit + Packaging cost/Unit

= BDT (829.5 + 44 + 150 + 15)

= BDT 1,038.50

 

Selling Price = {(Fixed Cost/ Quantity) + Variable Cost} + Profit (% of total cost)

= {(2,56,470 /250) + 1,038.5} + 234.62 (11.365% ≈ 11.37% of total cost)

= BDT 2,299.00

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Stress and Cost Analysis (Cont.)

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The Equations for Break-Even Analysis:

 

For Fixed Cost, F.C = BDT 256470

For Variable Cost, V.C = BDT 1038.5 [Where, Q = Break Even Quantity]

For Total Cost, T.C = F.C + V.C = 256470 + BDT 1038.5Q

Sales, R = BDT 2299 Q

At Break Even Point,

Total Revenue = Total Cost

Or, T.R = T.C

Or. 2299Q = 256470 + 1038.5Q

Or, Q = 203.467 units ≈ 203 units

 

So, The Break Even Quantity is 203 Units.

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Stress and Cost Analysis (Cont.)

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Stress and Cost Analysis (Cont.)

Break Even Graph

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